A new world is emerging years after war destroyed society. In a Minnesota lake, the last surviving loons, direct descendants of the legendary First Pair, await the one who can help heal the earth. Each year a human sacrifice is brought to them to be endowed with special gifts, but they come at a terrible price.

Even as the rest of the world rebuilds, Grace Kriske’s life is shattered. Unable to walk, she feels utterly dependent on her family and trapped in a community that disapproves of her rebellious ways. Grace’s only solace is her lover, David Tvedt, a trader who wants to take her away with him—if she’d let him.

Yet something else calls to Grace—the loons. They haunt her dreams, lurking in her mind as if part of her deepest primal self. But when Grace is chosen as the new sacrifice, she’s afraid. Will she risk everything to help the community that shuns her, or will she choose her own path?